Lucy is rolling a number cube with the numbers 1-6. What is the probability she
will NOT roll a 2?
A.1/6
B.5/6
C.1/2
D.1/3

B

Step-by-step explanation:

It is B because if there is six numbers so that is the denominator. The numerator is found because the question is to not find a 2 so 6-1=5. So it is 5/6.

the answer   is 200

step-by-step explanation:

this is a problem about poisson probabilities.   i don't know if you've

already studied poisson distributions, or if you have a place to look

to read more about the subject.  

here's how you can see a poisson distribution coming.   when there are

a lot of events that may happen at any time (or any place), and when

you're counting how many of them happen at a particular time (or a

particular place), and each event is independent of the others, then

the result is a poisson distribution.   this is roughly true for the

chocolate chips; one chip being in a cookie has only a small effect on

the probability that another chip will be in the cookie.

once you know you have a poisson distribution, you know a lot.   there

is only one parameter to a poisson distribution, so if you know the

mean, you know everything.   the form of the distribution is

  probability of n chips = {[e^(-x)]*(x^n)} / (n! )

its kind of blurry. can you put a clearer pic?

step-by-step explanation: